WMC- x types_ dell vostro 3550

i'v already read alot here:

http://en.community.dell.com/support-forums/laptop/f/3518/t/19409741.aspx?PageIndex=2

and here:

http://en.community.dell.com/support-forums/laptop/f/3518/t/19464322.aspx

seems like i got the same x types issue like in inspiron 5110.

so i understand it's a hardware issue (tho dell support won't admit it) and i don't need to replace a sh!t or play with registries.

but what i need is to open up my laptop and see where the hot buttoms are touching metal.

only problem is : lack of videos or guides to open up a vostro 3550 laptop yourself!

so if some1 could help me out with this it would be awsome. tho i believe im still under warranty and abit scared O.o

thanks